Simple calculator on C# writen without using any arithmetic operator

Calculator.cs

var variable = Expression.Variable(typeof(String[]));
Expression.Lambda(
    Expression.Loop(
        Expression.Block(
            new[] { variable },
            Expression.Call(typeof(Console), "Write", Type.EmptyTypes, Expression.Constant('>')),
            Expression.Call(typeof(Console), "Write", Type.EmptyTypes, Expression.Constant(' ')),
            Expression.Assign(variable,
                Expression.Call(
                    Expression.Call(typeof(Console), "ReadLine", Type.EmptyTypes),
                    "Split",
                    Type.EmptyTypes,
                    Expression.NewArrayInit(typeof(Char), Expression.Constant(' '))
                )
            ),
            Expression.Switch(
                Expression.ArrayAccess(variable, Expression.Constant(1)),
                Expression.SwitchCase(
                    Expression.Call(typeof(Console), "WriteLine", Type.EmptyTypes,
                        Expression.Add(
                            Expression.Call(typeof(Double), "Parse", Type.EmptyTypes, Expression.ArrayAccess(variable, Expression.Constant(0))),
                            Expression.Call(typeof(Double), "Parse", Type.EmptyTypes, Expression.ArrayAccess(variable, Expression.Constant(2)))
                        )
                    ),
                    Expression.Constant("+")
                ),
                Expression.SwitchCase(
                    Expression.Call(typeof(Console), "WriteLine", Type.EmptyTypes,
                        Expression.Subtract(
                            Expression.Call(typeof(Double), "Parse", Type.EmptyTypes, Expression.ArrayAccess(variable, Expression.Constant(0))),
                            Expression.Call(typeof(Double), "Parse", Type.EmptyTypes, Expression.ArrayAccess(variable, Expression.Constant(2)))
                        )
                    ),
                    Expression.Constant("-")
                ),
                Expression.SwitchCase(
                    Expression.Call(typeof(Console), "WriteLine", Type.EmptyTypes,
                        Expression.Multiply(
                            Expression.Call(typeof(Double), "Parse", Type.EmptyTypes, Expression.ArrayAccess(variable, Expression.Constant(0))),
                            Expression.Call(typeof(Double), "Parse", Type.EmptyTypes, Expression.ArrayAccess(variable, Expression.Constant(2)))
                        )
                    ),
                    Expression.Constant("*")
                ),
                Expression.SwitchCase(
                    Expression.Call(typeof(Console), "WriteLine", Type.EmptyTypes,
                        Expression.Divide(
                            Expression.Call(typeof(Double), "Parse", Type.EmptyTypes, Expression.ArrayAccess(variable, Expression.Constant(0))),
                            Expression.Call(typeof(Double), "Parse", Type.EmptyTypes, Expression.ArrayAccess(variable, Expression.Constant(2)))
                        )
                    ),
                    Expression.Constant("/")
                )
            ),
            Expression.Call(typeof(Console), "WriteLine", Type.EmptyTypes)
        )
    )
).Compile().DynamicInvoke();